# Resonant Raman scattering of few layers CrBr3

https://mdr.nims.go.jp/datasets/968757e5-08f8-4055-80b8-4d17278de0b2

## File

- [s41598-024-57622-w.pdf](https://mdr.nims.go.jp/filesets/adf8030e-2e63-4c29-9898-2158a82267b8/download) ([Detail](https://mdr.nims.go.jp/filesets/adf8030e-2e63-4c29-9898-2158a82267b8.md))

## Id

968757e5-08f8-4055-80b8-4d17278de0b2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-18T07:59:18.712506Z

## Updated at

2025-02-23T13:48:43.812590Z

## Published at

2025-02-23T13:48:43.882250Z

## Doi



## First published url

https://doi.org/10.1038/s41598-024-57622-w

## Date published

2024-03-29

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Resonant Raman scattering of few layers CrBr3
  title_type: original
  lang: en

## Description

- description: 'We investigate the vibrational and magnetic properties of thin layers
    of chromium tribromide (CrBr3) with a thickness ranging from three to twenty layers
    (3 L to 20 L) revealed by the Raman scattering (RS) technique. Systematic dependence
    of the RS process efficiency on the energy of the laser excitation is explored
    for four different excitation energies: 1.96 eV, 2.21 eV, 2.41 eV, and 3.06 eV.
    Our characterization demonstrates that for 12 L CrBr3, 3.06 eV excitation could
    be considered resonant with interband electronic transitions due to the enhanced
    intensity of the Raman-active scattering resonances and the qualitative change
    in the Raman spectra. Polarization- resolved RS measurements for 12 L CrBr3 and
    first-principles calculations allow us to identify five observable phonon modes
    characterized by distinct symmetries, classified as the Ag and Eg modes. The evolution
    of phonon modes with temperature for a 20 L CrBr3 encapsulated in hexagonal boron
    nitride flakes demonstrates alterations of phonon energies and/or linewidths of
    resonances indicative of a transition between the paramagnetic and ferromagnetic
    state at Curie temperature (TC ≈ 50 K). The exploration of the effects of thickness
    on the phonon energies demonstrated small variations pronounces exclusively for
    the thinnest layers in the vicinity of 3 - 5 L. This observation is attributed
    to strong localization in the real space of interband electronic excitations,
    limiting the effects of confinement for resonantly excited Raman modes to atomically
    thin layers.'
  description_type: abstract
  lang: und

## Creator

- name: Łucja Kipczak
  role: author
- name: Arka Karmakar
  role: author
- name: Magdalena Grzeszczyk
  role: author
- name: Róża Janiszewska
  role: author
- name: Tomasz Woźniak
  role: author
- name: Zhaolong Chen
  role: author
- name: Jan Pawłowski
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Adam Babiński
  role: author
- name: Maciej Koperski
  role: author
- name: Maciej R. Molas
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Vibrational properties
  schema: not_defined
- subject: magnetic properties
  schema: not_defined
- subject: CrBr3
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Scientific Reports
  issn: '20452322'
  volume: '14'
  issue: '1'
  article_number: '7484'

## Conference



## Related item



## Funding

- identifier: FA8655-21-1-7026
  funder_name: Air Force Office of Scientific Research
- identifier: EDUN C-33-18-279-v12, I-FIM
  funder_name: Ministry of Education - Singapore
- identifier: 2020/37/B/ST3/02311
  funder_name: National Science Centre, Poland
- identifier: 2023/48/C/ST3/00309
  funder_name: National Science Centre, Poland
- identifier: 21H05233
  funder_name: JSPS KAKENHI
- identifier: MEXT
  funder_name: World Premier International Research Center Initiative

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: adf8030e-2e63-4c29-9898-2158a82267b8
  filename: s41598-024-57622-w.pdf
  content_type: application/pdf
  size: 1625446
  md5: 52f489475e1931fc08e30704d047d507

## Thumbnail

fileset_id: adf8030e-2e63-4c29-9898-2158a82267b8
filename: s41598-024-57622-w.pdf